CVE-2019-5418

Rails Ruby on Rails Path Traversal Vulnerability

Rails — Ruby on Rails

Added to KEV catalog: 7 July 2025
Federal remediation due date: 28 July 2025
Weakness classification (CWE): CWE-22

CISA Description

Rails Ruby on Rails contains a path traversal vulnerability in Action View. Specially crafted accept headers in combination with calls to `render file:` can cause arbitrary files on the target server to be rendered, disclosing the file contents.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://web.archive.org/web/20190313201629/https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ ; https://nvd.nist.gov/vuln/detail/CVE-2019-5418

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